Home / 18,622.29-25,689.90-11,064.38

Finding the Fourth Proportional to 18,622.29, 25,689.90 and 11,064.38

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Solution

The fourth proportional to 18,622.29, 25,689.90 and 11,064.38 is: 15,263.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,622.29 : 25,689.90 = 11,064.38 : x
  2. Step 2: Convert to fraction form
    18,622.29/25,689.90 = 11,064.38/x
  3. Step 3: Cross multiply
    18,622.29x = 25,689.90 × 11,064.38
  4. Step 4: Simplify right side
    18,622.29x = 284,242,687.31
  5. Step 5: Solve for x
    x = 284,242,687.31/18,622.29
  6. Step 6: Final answer
    x = 15,263.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.